Home / 87,562.15-120,725.24-57,299.54

Finding the Fourth Proportional to 87,562.15, 120,725.24 and 57,299.54

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Solution

The fourth proportional to 87,562.15, 120,725.24 and 57,299.54 is: 79,001.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,562.15 : 120,725.24 = 57,299.54 : x
  2. Step 2: Convert to fraction form
    87,562.15/120,725.24 = 57,299.54/x
  3. Step 3: Cross multiply
    87,562.15x = 120,725.24 × 57,299.54
  4. Step 4: Simplify right side
    87,562.15x = 6,917,499,828.27
  5. Step 5: Solve for x
    x = 6,917,499,828.27/87,562.15
  6. Step 6: Final answer
    x = 79,001.03

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.